When I try to browse www.gentoo.org it shows me the following message:

Quote:

The requested operation could not be completed
Unknown Host

Details of the Request:
URL: http://www.gentoo.org
Protocol: http
Date and Time: Sunday 27 January 2013 03:25
Additional Information: www.gentoo.org: Host not found
Description:
An unknown host error indicates that the server with the requested name, www.gentoo.org, could not be located on the Internet.
Possible Causes:
The name that you typed, www.gentoo.org, may not exist: it may be incorrectly typed.
There may have been a problem with your network connection.
There may have been a problem with your network configuration. If you have been accessing the Internet with no problems recently, this is unlikely.
Possible Solutions:
Check your network connection status.
Contact your appropriate computer support system, whether the system administrator, or technical support group for further assistance.

Hmm my router doesn't have any firewall log.. or am i looking in the wrong place?

UDP is not a robust protocol. When you get transmission errors, its up to the application to sort out the mess.
TCP would do a retries until it worked or timed out. This is bad for latency. So you use UDP for VoIP, not TCP.

If the errors are real, you may have a hardware problem but then they would be operating system independent.

Its possible its a packet fragmentation issue and you need to play with your MTU.

Raw ethernet should work with an MTU of 1500
PPPoE needs 1492 or less, due to the extra header.

A sensible end to end MTU should be set automatically but you may force it if you wish.
For testing try 500 that will avoid fragmentation anywhere. Don't leave it like that. If its better/works is indicates another problem._________________Regards,

NeddySeagoon

Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail.